tomorrow night, first lady michelle obama and dr. jill biden will host the kids inaugust ration concert. alicia keys, katy perry and brad paisley among the performers. >> stay with fox 5 for all the latest on the inauguration. we have it onair and online at myfoxdc.com. we'll be on the air beginning at 4:00 a.m. monday morning. but before that on sunday, we will carry the official swearing in live around noon. >>> all right. opening up, they each struggled with addictions. they share how they won their battles. >> plus, armed guards in schools. what d.c.'s mayor thinks of this idea. it's 8:07. we'll be right back. >>> welcome back. it's 8:10. stripped of his tour de france victories and olympic bronze medal, lance armstrong is coming clean to oprah winfrey. >> yes or no, in all seven of your tour de france victories, did you ever take banned substances or blood dope? >> yes. >> in your opinion, was it humanly possible to win the tour de france without doping, seven times in a row? >> not in my opinion. >> the disgraced cycli